Jun Sagawa is okay but not always strong

I watched Caniba (2017) and Jun Sagawa was one of the parts I kept noticing. Some parts are good, but other parts feel normal and not very fresh. There are good moments, especially when the scene is quiet. I wanted more detail, but it still has some useful emotion. I can understand what the actor wants to do, but not every scene is strong. The performance is okay for the movie, but sometimes it feels a little flat. Maybe other people will like it more, but this is my feeling.